(1968). Phases of matter: A science unit for the upper elementary grades ; teacher's guide (Trial ed.). Science Curriculum Improvement Study.
Цитирование в стиле Чикаго (17-е изд.)Phases of Matter: A Science Unit for the Upper Elementary Grades ; Teacher's Guide. Trial ed. Berkeley, CA: Science Curriculum Improvement Study, 1968.
Цитирование MLA (9-е изд.)Phases of Matter: A Science Unit for the Upper Elementary Grades ; Teacher's Guide. Trial ed. Science Curriculum Improvement Study, 1968.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.